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Finding the Fourth Proportional to 158,666.80, 238,000.20 and 69,874.60

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Solution

The fourth proportional to 158,666.80, 238,000.20 and 69,874.60 is: 104,811.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,666.80 : 238,000.20 = 69,874.60 : x
  2. Step 2: Convert to fraction form
    158,666.80/238,000.20 = 69,874.60/x
  3. Step 3: Cross multiply
    158,666.80x = 238,000.20 × 69,874.60
  4. Step 4: Simplify right side
    158,666.80x = 16,630,168,774.92
  5. Step 5: Solve for x
    x = 16,630,168,774.92/158,666.80
  6. Step 6: Final answer
    x = 104,811.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.